Fanapt is one of a many drugs the FDA pumped out with an ability to exact the opposite desired effect on people: that is, you know, inducing rather than inhibiting psychosis and aggressive behavior."

If this story is true that the perpetrator was on Fanapt, then this should be considered by the anti-psychiatry medication crowd more closely than "aha it's ANOTHER drug" because it has a completely different mechanism than the SSRIs usually blamed. In fact it actually works to block and downregulate the 5H-T2A receptors (the target of the SSRIs, which enhance and upregulate the receptors).